Kontron ETXexpress-AI - Manual (Page 75)

Kontron ETXexpress-AI User’s Guide
70
IRQ # Used For Availab
le
Comment
PIRQ# or HPET#2
12 PS/2 Mouse Yes (No) Option for SCI, TCO, or PIRQ#, or HPET#3; Note
(1)
13 FPU No FERR# Logic
14 SATA Yes (No) SATA Primary (Legacy Mode); Note(1)
15 SATA Yes (No) SATA Secondary (Legacy Mode); Note(1)
16 PIRQ [A] No Dynamic assignment; PCI IRQ line 1 ; Note (3)
17 PIRQ [B] No Dynamic assignment; PCI IRQ line 2 ; Note (3)
18 PIRQ [C] No Dynamic assignment; PCI IRQ line 3 ; Note (3)
19 PIRQ [D] No Dynamic assignment; PCI IRQ line 4 ; Note (3)
20 PIRQ [E] No Dynamic assignment; Note (3)
21 PIRQ [F] No Dynamic assignment; Note (3)
22 PIRQ [G] No Dynamic assignment; Note (3)
23 PIRQ [H] No Dynamic assignment; Note (3)
NOTES: 1) If the “Used For” device is disabled in setup, the interrupt
is available for other devices.
2) Not available if ACPI is used
3) ACPI OS decides on the particular IRQ usage
7.2 Memory Area
The first 640 KBytes of DRAM are used as main memory. With DOS, you can
address 1 MB of memory directly. Memory area above 1 MB (high memory,
extended memory) is accessed under DOS via special drivers such as HIMEM.SYS
and EMM386.EXE, which are part of the operating system. Please refer to the
operating system documentation or special textbooks for information about
HIMEM.SYS and EMM386.EXE.
Other operating systems (Linux or Windows versions) allow you to address the
full memory area directly.
Upper Memory Used for Available Comment
A0000h – BFFFFh VGA Memory No Mainly used by graphics controller
C0000h – CFFFFh VGA BIOS No Used by onboard VGA ROM
D0000h – DFFFFh Yes Free for shadow RAM in standard
configurations
E0000h – FFFFFh System BIOS No Fixed